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#1
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A pixel by any other name...
I think digital photography is beyond my mental capacities (sigh).
I have several photos that were saved both as raw image files and as jpgs. For many of them, the jpg file reports more pixels than the raw image file. How can that be? I thought a jpg file was a compressed version of the raw image file. So the number of pixels should be at most the same, and I would have thought somewhat lower. Here are a couple of examples: Camera: Canon 5D Mark I with Canon EF 24-70mm f/2.8L lens Filetype: CR2 (raw file) Pixels: 2496 x 1664 Pixels (4.15 MPixels) (3:2) Print Size: 21.1 x 14.1 cm; 8.3 x 5.5 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 12.92 MB (13,550,637 Bytes) Filetype: JPG Pixels: 3156 x 2678 Pixels (8.45 MPixels) (1.18) Print Size: 26.7 x 22.7 cm; 10.5 x 8.9 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 7.07 MB (7,418,412 Bytes) The JPG also has a quite different aspect ratio (1.18 vs 1.5). Camera: Panasonic DMC-G1 with a 14-45 zoom lens Filetype: RW2 (raw file) Pixels: 1920 x 1440 Pixels (2.76 MPixels) (4:3) Print Size: 16.3 x 12.2 cm; 6.4 x 4.8 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 13.99 MB (14,665,216 Bytes) Filetype: JPG Pixels: 2816 x 2112 Pixels (5.95 MPixels) (4:3) Print Size: 23.8 x 17.9 cm; 9.4 x 7.0 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 2.61 MB (2,736,853 Bytes) Camera: Nikon D700 with a 24-120 mm zoom lens Filetype: PSD (raw file) Pixels: 2910 x 2435 Pixels (7.09 MPixels) (1.20) Print Size: 24.6 x 20.6 cm; 9.7 x 8.1 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 81.14 MB (85,081,048 Bytes) Filetype: JPG Pixels: 2910 x 2435 Pixels (7.09 MPixels) (1.20) Print Size: 24.6 x 20.6 cm; 9.7 x 8.1 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 4.25 MB (4,455,756 Bytes) For this pair, the number of pixels and the aspect ratio are the same, but the size of the file shrank by almost 20:1. |
#2
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A pixel by any other name...
On 04/11/2013 06:18 PM, Jennifer Murphy wrote:
I think digital photography is beyond my mental capacities (sigh). I have several photos that were saved both as raw image files and as jpgs. For many of them, the jpg file reports more pixels than the raw image file. How can that be? I thought a jpg file was a compressed version of the raw image file. So the number of pixels should be at most the same, and I would have thought somewhat lower. Here are a couple of examples: snip You may want to read this article: http://www.kenrockwell.com/tech/raw.htm |
#3
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A pixel by any other name...
In article , philo*
wrote: You may want to read this article: http://www.kenrockwell.com/tech/raw.htm actually, you *don't* want to read that article. that person makes stuff up and intentionally misleads people, thinking it's some sort of game (he admits this on his about page). |
#4
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A pixel by any other name...
In article , Jennifer
Murphy wrote: I think digital photography is beyond my mental capacities (sigh). i think you're trying to make it more complicated than it needs to be. I have several photos that were saved both as raw image files and as jpgs. For many of them, the jpg file reports more pixels than the raw image file. How can that be? i don't know where you're getting the raw files but they're not straight from the cameras. the numbers are wrong. also keep in mind that a jpeg can be resized to anything you want. if you are going to compare raw versus jpeg, they must be unmodified out of the camera, with the settings set to maximum resolution. I thought a jpg file was a compressed version of the raw image file. So the number of pixels should be at most the same, and I would have thought somewhat lower. it should be the same, unless the jpeg has been resized, cropped or otherwise modified. Here are a couple of examples: Camera: Canon 5D Mark I with Canon EF 24-70mm f/2.8L lens Filetype: CR2 (raw file) Pixels: 2496 x 1664 Pixels (4.15 MPixels) (3:2) Print Size: 21.1 x 14.1 cm; 8.3 x 5.5 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 12.92 MB (13,550,637 Bytes) Filetype: JPG Pixels: 3156 x 2678 Pixels (8.45 MPixels) (1.18) Print Size: 26.7 x 22.7 cm; 10.5 x 8.9 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 7.07 MB (7,418,412 Bytes) The JPG also has a quite different aspect ratio (1.18 vs 1.5). i don't know where you got that raw file but it's not from a canon 5d. a canon 5d (mark i) has 4368 x 2912 pixels, for 12.7 megapixels, not 4 megapixels. the aspect ratio on a 5d is 3:2, so the jpeg was cropped. Camera: Panasonic DMC-G1 with a 14-45 zoom lens Filetype: RW2 (raw file) Pixels: 1920 x 1440 Pixels (2.76 MPixels) (4:3) Print Size: 16.3 x 12.2 cm; 6.4 x 4.8 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 13.99 MB (14,665,216 Bytes) Filetype: JPG Pixels: 2816 x 2112 Pixels (5.95 MPixels) (4:3) Print Size: 23.8 x 17.9 cm; 9.4 x 7.0 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 2.61 MB (2,736,853 Bytes) something is wrong there too. the dmc-g1 has 12 megapixels, not 2.76 mp. Camera: Nikon D700 with a 24-120 mm zoom lens Filetype: PSD (raw file) Pixels: 2910 x 2435 Pixels (7.09 MPixels) (1.20) Print Size: 24.6 x 20.6 cm; 9.7 x 8.1 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 81.14 MB (85,081,048 Bytes) Filetype: JPG Pixels: 2910 x 2435 Pixels (7.09 MPixels) (1.20) Print Size: 24.6 x 20.6 cm; 9.7 x 8.1 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 4.25 MB (4,455,756 Bytes) For this pair, the number of pixels and the aspect ratio are the same, but the size of the file shrank by almost 20:1. psd is photoshop, not raw, and a nikon d700 has 12 megapixels, not 7. is that the one your friend adjusted the perspective? if so, that explains why it's 7 mp and why it's a photoshop file. it was resized and cropped in photoshop to fix the perspective distortion. |
#5
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A pixel by any other name...
On 2013-04-11 16:18:33 -0700, Jennifer Murphy said:
I think digital photography is beyond my mental capacities (sigh). I have several photos that were saved both as raw image files and as jpgs. For many of them, the jpg file reports more pixels than the raw image file. How can that be? I thought a jpg file was a compressed version of the raw image file. So the number of pixels should be at most the same, and I would have thought somewhat lower. Here are a couple of examples: Camera: Canon 5D Mark I with Canon EF 24-70mm f/2.8L lens Filetype: CR2 (raw file) Pixels: 2496 x 1664 Pixels (4.15 MPixels) (3:2) Print Size: 21.1 x 14.1 cm; 8.3 x 5.5 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 12.92 MB (13,550,637 Bytes) Filetype: JPG Pixels: 3156 x 2678 Pixels (8.45 MPixels) (1.18) Print Size: 26.7 x 22.7 cm; 10.5 x 8.9 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 7.07 MB (7,418,412 Bytes) The JPG also has a quite different aspect ratio (1.18 vs 1.5). In the above case you have two different dimension sizes; the CR2 is 2496 x 1664 p giving you 4.15MP and the jpeg is 3156 x 2678 p at 8.9MP, an almost 50% difference due to the dimensional difference. These are MPixels which deal only with physical dimensions. Note the actual file (disk size) sizes are 12.92 MB for the CR2 and 7.07 MB for the JPEG. There is still more data contained in the RAW CR2. I suspect you have an adjusted and size extrapolated JPEG there, not a JPEG immediately converted from the CR2. The 16-bit CR2 is unadjusted and not altered in any way. Camera: Panasonic DMC-G1 with a 14-45 zoom lens Filetype: RW2 (raw file) Pixels: 1920 x 1440 Pixels (2.76 MPixels) (4:3) Print Size: 16.3 x 12.2 cm; 6.4 x 4.8 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 13.99 MB (14,665,216 Bytes) Filetype: JPG Pixels: 2816 x 2112 Pixels (5.95 MPixels) (4:3) Print Size: 23.8 x 17.9 cm; 9.4 x 7.0 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 2.61 MB (2,736,853 Bytes) This is a similar scenario to the Canon example. the dimensional size of the jpeg has been enlarged, while the true size of the files, the RW2 and the compressed jpeg reflect the truth of the data contained in each. Also in this case the 16-bit RW2 is unadjusted Camera: Nikon D700 with a 24-120 mm zoom lens Filetype: PSD (raw file) Pixels: 2910 x 2435 Pixels (7.09 MPixels) (1.20) Print Size: 24.6 x 20.6 cm; 9.7 x 8.1 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 81.14 MB (85,081,048 Bytes) Filetype: JPG Pixels: 2910 x 2435 Pixels (7.09 MPixels) (1.20) Print Size: 24.6 x 20.6 cm; 9.7 x 8.1 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 4.25 MB (4,455,756 Bytes) For this pair, the number of pixels and the aspect ratio are the same, but the size of the file shrank by almost 20:1. This is a different situation. First PSD is not the native RAW format, for that it should be an NEF. PSD is an Adobe file type, as sub-type of TIFF which preserves layer and adjustments made with Photoshop and some other editing software. Note that the dimensions of both the PSD and the JPEG are identical, and so both have the same total pixels, 7.09MP. The disk or file size tells the other side of the story. The adjustments and edits were probably made to the converted RAW NEF file and then saved to the hard drive. It will not be saved as a NEF, but as a 16-bit, uncompressed PSD, retaining all the data of the adjustments. Then to save it as a compressed JPEG it will be saved as an 8-bit compressed JPEG -- Regards, Savageduck |
#6
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A pixel by any other name...
In article 2013041117141337709-savageduck1@REMOVESPAMmecom,
Savageduck wrote: The 16-bit CR2 is unadjusted and not altered in any way. .... Also in this case the 16-bit RW2 is unadjusted one would expect that to be the case for raw, but the pixel dimensions don't match the number of pixels the cameras actually have. something else is going on. |
#7
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A pixel by any other name...
In article , nospam
wrote: if you are going to compare raw versus jpeg, they must be unmodified out of the camera, with the settings set to maximum resolution. actually, that should really be native resolution, not maximum. some cameras have a fake 'high res' mode that is interpolated up from its native resolution. |
#8
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A pixel by any other name...
On Thu, 11 Apr 2013 19:56:08 -0400, nospam
wrote: In article , Jennifer Murphy wrote: I think digital photography is beyond my mental capacities (sigh). i think you're trying to make it more complicated than it needs to be. It wouldn't be the first time... I have several photos that were saved both as raw image files and as jpgs. For many of them, the jpg file reports more pixels than the raw image file. How can that be? i don't know where you're getting the raw files but they're not straight from the cameras. the numbers are wrong. I have a couple of friends with cameras that are better than mine. I asked them for the "raw" files and that's what I got. also keep in mind that a jpeg can be resized to anything you want. And once resized, the number of pixels as reported by IrfanView could be anything, right? if you are going to compare raw versus jpeg, they must be unmodified out of the camera, with the settings set to maximum resolution. I'm starting to think that my friends may not know as much about how their cameras work as I thought they did. I thought a jpg file was a compressed version of the raw image file. So the number of pixels should be at most the same, and I would have thought somewhat lower. it should be the same, unless the jpeg has been resized, cropped or otherwise modified. Here are a couple of examples: Camera: Canon 5D Mark I with Canon EF 24-70mm f/2.8L lens Filetype: CR2 (raw file) Pixels: 2496 x 1664 Pixels (4.15 MPixels) (3:2) Print Size: 21.1 x 14.1 cm; 8.3 x 5.5 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 12.92 MB (13,550,637 Bytes) Filetype: JPG Pixels: 3156 x 2678 Pixels (8.45 MPixels) (1.18) Print Size: 26.7 x 22.7 cm; 10.5 x 8.9 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 7.07 MB (7,418,412 Bytes) The JPG also has a quite different aspect ratio (1.18 vs 1.5). i don't know where you got that raw file but it's not from a canon 5d. a canon 5d (mark i) has 4368 x 2912 pixels, for 12.7 megapixels, not 4 megapixels. the aspect ratio on a 5d is 3:2, so the jpeg was cropped. I was told by the owner that it was the raw camera file. (sigh) Camera: Panasonic DMC-G1 with a 14-45 zoom lens Filetype: RW2 (raw file) Pixels: 1920 x 1440 Pixels (2.76 MPixels) (4:3) Print Size: 16.3 x 12.2 cm; 6.4 x 4.8 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 13.99 MB (14,665,216 Bytes) Filetype: JPG Pixels: 2816 x 2112 Pixels (5.95 MPixels) (4:3) Print Size: 23.8 x 17.9 cm; 9.4 x 7.0 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 2.61 MB (2,736,853 Bytes) something is wrong there too. the dmc-g1 has 12 megapixels, not 2.76 mp. Again, I asked for the raw camera file and that's what I was given. Camera: Nikon D700 with a 24-120 mm zoom lens Filetype: PSD (raw file) Pixels: 2910 x 2435 Pixels (7.09 MPixels) (1.20) Print Size: 24.6 x 20.6 cm; 9.7 x 8.1 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 81.14 MB (85,081,048 Bytes) Filetype: JPG Pixels: 2910 x 2435 Pixels (7.09 MPixels) (1.20) Print Size: 24.6 x 20.6 cm; 9.7 x 8.1 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 4.25 MB (4,455,756 Bytes) For this pair, the number of pixels and the aspect ratio are the same, but the size of the file shrank by almost 20:1. psd is photoshop, not raw, and a nikon d700 has 12 megapixels, not 7. This is very disappointing. I am reluctant to go back to my friends and suggest that they con't know what the heck they are doing. is that the one your friend adjusted the perspective? if so, that explains why it's 7 mp and why it's a photoshop file. it was resized and cropped in photoshop to fix the perspective distortion. There is one that she cropped in PS, but the one that is 130MB (.psd) was supposed to be a raw camera file. Maybe I need to hire a professional photographer to do it right. I've spent sop much time trying to get a good shoot, what I could have paid for it several times over. Thanks for the patient instruction. |
#9
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A pixel by any other name...
On Thu, 11 Apr 2013 17:14:13 -0700, Savageduck
wrote: On 2013-04-11 16:18:33 -0700, Jennifer Murphy said: I think digital photography is beyond my mental capacities (sigh). I have several photos that were saved both as raw image files and as jpgs. For many of them, the jpg file reports more pixels than the raw image file. How can that be? I thought a jpg file was a compressed version of the raw image file. So the number of pixels should be at most the same, and I would have thought somewhat lower. Here are a couple of examples: Camera: Canon 5D Mark I with Canon EF 24-70mm f/2.8L lens Filetype: CR2 (raw file) Pixels: 2496 x 1664 Pixels (4.15 MPixels) (3:2) Print Size: 21.1 x 14.1 cm; 8.3 x 5.5 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 12.92 MB (13,550,637 Bytes) Filetype: JPG Pixels: 3156 x 2678 Pixels (8.45 MPixels) (1.18) Print Size: 26.7 x 22.7 cm; 10.5 x 8.9 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 7.07 MB (7,418,412 Bytes) The JPG also has a quite different aspect ratio (1.18 vs 1.5). In the above case you have two different dimension sizes; the CR2 is 2496 x 1664 p giving you 4.15MP and the jpeg is 3156 x 2678 p at 8.9MP, an almost 50% difference due to the dimensional difference. These are MPixels which deal only with physical dimensions. Note the actual file (disk size) sizes are 12.92 MB for the CR2 and 7.07 MB for the JPEG. There is still more data contained in the RAW CR2. I suspect you have an adjusted and size extrapolated JPEG there, not a JPEG immediately converted from the CR2. The 16-bit CR2 is unadjusted and not altered in any way. Camera: Panasonic DMC-G1 with a 14-45 zoom lens Filetype: RW2 (raw file) Pixels: 1920 x 1440 Pixels (2.76 MPixels) (4:3) Print Size: 16.3 x 12.2 cm; 6.4 x 4.8 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 13.99 MB (14,665,216 Bytes) Filetype: JPG Pixels: 2816 x 2112 Pixels (5.95 MPixels) (4:3) Print Size: 23.8 x 17.9 cm; 9.4 x 7.0 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 2.61 MB (2,736,853 Bytes) This is a similar scenario to the Canon example. the dimensional size of the jpeg has been enlarged, while the true size of the files, the RW2 and the compressed jpeg reflect the truth of the data contained in each. Also in this case the 16-bit RW2 is unadjusted Camera: Nikon D700 with a 24-120 mm zoom lens Filetype: PSD (raw file) Pixels: 2910 x 2435 Pixels (7.09 MPixels) (1.20) Print Size: 24.6 x 20.6 cm; 9.7 x 8.1 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 81.14 MB (85,081,048 Bytes) Filetype: JPG Pixels: 2910 x 2435 Pixels (7.09 MPixels) (1.20) Print Size: 24.6 x 20.6 cm; 9.7 x 8.1 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 4.25 MB (4,455,756 Bytes) For this pair, the number of pixels and the aspect ratio are the same, but the size of the file shrank by almost 20:1. This is a different situation. First PSD is not the native RAW format, for that it should be an NEF. PSD is an Adobe file type, as sub-type of TIFF which preserves layer and adjustments made with Photoshop and some other editing software. Note that the dimensions of both the PSD and the JPEG are identical, and so both have the same total pixels, 7.09MP. The disk or file size tells the other side of the story. The adjustments and edits were probably made to the converted RAW NEF file and then saved to the hard drive. It will not be saved as a NEF, but as a 16-bit, uncompressed PSD, retaining all the data of the adjustments. Then to save it as a compressed JPEG it will be saved as an 8-bit compressed JPEG You make similar points to nospam. Thanks. |
#10
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A pixel by any other name...
On 2013-04-11 20:28:05 -0700, Jennifer Murphy said:
On Thu, 11 Apr 2013 17:14:13 -0700, Savageduck wrote: On 2013-04-11 16:18:33 -0700, Jennifer Murphy said: I think digital photography is beyond my mental capacities (sigh). I have several photos that were saved both as raw image files and as jpgs. For many of them, the jpg file reports more pixels than the raw image file. How can that be? I thought a jpg file was a compressed version of the raw image file. So the number of pixels should be at most the same, and I would have thought somewhat lower. Here are a couple of examples: Camera: Canon 5D Mark I with Canon EF 24-70mm f/2.8L lens Filetype: CR2 (raw file) Pixels: 2496 x 1664 Pixels (4.15 MPixels) (3:2) Print Size: 21.1 x 14.1 cm; 8.3 x 5.5 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 12.92 MB (13,550,637 Bytes) Filetype: JPG Pixels: 3156 x 2678 Pixels (8.45 MPixels) (1.18) Print Size: 26.7 x 22.7 cm; 10.5 x 8.9 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 7.07 MB (7,418,412 Bytes) The JPG also has a quite different aspect ratio (1.18 vs 1.5). In the above case you have two different dimension sizes; the CR2 is 2496 x 1664 p giving you 4.15MP and the jpeg is 3156 x 2678 p at 8.9MP, an almost 50% difference due to the dimensional difference. These are MPixels which deal only with physical dimensions. Note the actual file (disk size) sizes are 12.92 MB for the CR2 and 7.07 MB for the JPEG. There is still more data contained in the RAW CR2. I suspect you have an adjusted and size extrapolated JPEG there, not a JPEG immediately converted from the CR2. The 16-bit CR2 is unadjusted and not altered in any way. Camera: Panasonic DMC-G1 with a 14-45 zoom lens Filetype: RW2 (raw file) Pixels: 1920 x 1440 Pixels (2.76 MPixels) (4:3) Print Size: 16.3 x 12.2 cm; 6.4 x 4.8 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 13.99 MB (14,665,216 Bytes) Filetype: JPG Pixels: 2816 x 2112 Pixels (5.95 MPixels) (4:3) Print Size: 23.8 x 17.9 cm; 9.4 x 7.0 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 2.61 MB (2,736,853 Bytes) This is a similar scenario to the Canon example. the dimensional size of the jpeg has been enlarged, while the true size of the files, the RW2 and the compressed jpeg reflect the truth of the data contained in each. Also in this case the 16-bit RW2 is unadjusted Camera: Nikon D700 with a 24-120 mm zoom lens Filetype: PSD (raw file) Pixels: 2910 x 2435 Pixels (7.09 MPixels) (1.20) Print Size: 24.6 x 20.6 cm; 9.7 x 8.1 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 81.14 MB (85,081,048 Bytes) Filetype: JPG Pixels: 2910 x 2435 Pixels (7.09 MPixels) (1.20) Print Size: 24.6 x 20.6 cm; 9.7 x 8.1 inches (at 300 dpi) Colors: 16,7 Millions (24 BitsPerPixel) Disk Size: 4.25 MB (4,455,756 Bytes) For this pair, the number of pixels and the aspect ratio are the same, but the size of the file shrank by almost 20:1. This is a different situation. First PSD is not the native RAW format, for that it should be an NEF. PSD is an Adobe file type, as sub-type of TIFF which preserves layer and adjustments made with Photoshop and some other editing software. Note that the dimensions of both the PSD and the JPEG are identical, and so both have the same total pixels, 7.09MP. The disk or file size tells the other side of the story. The adjustments and edits were probably made to the converted RAW NEF file and then saved to the hard drive. It will not be saved as a NEF, but as a 16-bit, uncompressed PSD, retaining all the data of the adjustments. Then to save it as a compressed JPEG it will be saved as an 8-bit compressed JPEG You make similar points to nospam. Thanks. To keep things simple, here is the data for a CR2 and corresponding matched jpeg, shot in a Canon G11 capturing RAW+JPEG (Fine Large). Filetype: CR2 Pixels: 2736x3648 or 9.98 MP for a 10MP camera. File/disk size: 14.2MB Filetype: JPEG (ex-camera, fine, large) Pixels: 2736x3648 or 9.98 MP for a 10MP camera. File/disk size: 4.2MB Out of the camera the dimensional size and megapixels for both the RAW CR2 and the JPEG will always be the same provided you select the largest possible in-camera JPEG setting. The initial file/disk size is going to be dependent on the the content of the image, with the addition that the JPEG's size will depend on the in-camera compression, in this case an approximately 7:1 compression ratio. -- Regards, Savageduck |
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